Located in San Bernardino, California, the Cucamonga Creek Debris Basin is a crucial structure designed for debris control and flood risk reduction. Owned by the local government, this Earth dam stands at a height of 60 feet and spans a length of 2980 feet, with a storage capacity of 355 acre-feet. Completed in 1980, it serves the primary purpose of managing debris in the Cucamonga Creek, which covers a drainage area of 12.35 square miles.

With a high hazard potential, the Cucamonga Creek Debris Basin undergoes regular inspections to ensure its structural integrity. The latest assessment in 2017 deemed its condition satisfactory, highlighting its importance in mitigating potential risks in the region. As part of the state-regulated facilities, it falls under the oversight of the Department of Water Resources (DWR) and is subject to state permitting, inspection, and enforcement to maintain its operational effectiveness in managing debris and reducing flood risks in the area.

Supported by federal and state agencies, the Cucamonga Creek Debris Basin plays a vital role in safeguarding the San Antonio community from potential flooding events. With its strategic location and effective design, this structure stands as a testament to the collaborative efforts between local and state entities in managing water resources and climate-related challenges in California.